<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="../react18/react.development.js"></script>
  <script src="../react18/react-dom.development.js"></script>
  <script src="../react18/babel.min.js"></script>
</head>

<body>
  <div id="app"></div>
  <script type="text/babel">

    class App extends React.Component{
        state={
            isLove:true
        }

        render(){
            const {isLove} =this.state

            return(
                <div>
                   <button onClick ={this.handle}>我睡得有点迷迷</button> 
                   <h1>{isLove?"条条的啊呜":'啊呜有条条'}</h1>
                </div>
            )
        }

        handle=()=>{
            const {isLove} = this.state
            this.setState({isLove:!isLove})
        }

    }
const root = ReactDOM.createRoot(document.getElementById('app')).render(<App/>)



  </script>
</body>

</html>